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Finding the Fourth Proportional to 2,624.33, 3,936.50 and 676.55

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Solution

The fourth proportional to 2,624.33, 3,936.50 and 676.55 is: 1,014.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.33 : 3,936.50 = 676.55 : x
  2. Step 2: Convert to fraction form
    2,624.33/3,936.50 = 676.55/x
  3. Step 3: Cross multiply
    2,624.33x = 3,936.50 × 676.55
  4. Step 4: Simplify right side
    2,624.33x = 2,663,239.08
  5. Step 5: Solve for x
    x = 2,663,239.08/2,624.33
  6. Step 6: Final answer
    x = 1,014.83

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.